Feed-water heater.



PATENTED APR. 19, 1904.

s. w. SIMPSON. FEED WATER HEATER.

APPLICATION FILED MAY 8, 1903.

30 MODEL.

fnuqntam. w Jw W. MQM QM WL'Z/Lasms amm UNITED STATES Patented April 19,1904.

PATENT OFFICE.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent N0. 757,846, dated April19, 1904.

Application filed May 8, 1903. .Serial No. 156,243. (No model.)

To all whom it may concern:

Be it known that I, SYDNEY WESTHORPE SIMrsoN, a subject of the King ofGreat Britain, residing at .Devonport House, Camperdown, Great Yarmouth,county of Norfolk,

England, have invented ,new and useful Improvements in FcedWV aterHeaters, of which the following is a specification.

This invention relates to improvements in feed-water heaters chieflydesigned for use in connection with condensing-engines.

According to the invention I make use of a device comprising acylindrical or other suitably-shaped chamber adapted to be fitted in thesteam-pipe, which may be enlarged to receive it. Around this chamber iscoiled a pipe, preferably of copper or other material which is a goodconductor of heat, the said coil forming a continuation of the chamber.The feed-water to be heated is caused to enter the chamber through whichit flows and thence passes into the coil. The exhaust-steam bathes thecylindrical chamber and the coil, so that the feed-water is heated bothin its passage through the cylindrical chamber and through the coil. Inpractice the device is so fitted in the steam-pipe that it can beremoved for examination, cleansing, and repair, and replaced withfacility. To avoid the disadvantages which are met with when pumping hotwater, I prefer to fit the device in the steam-pipe so that thefeed-water first flows through the pump by which it is forced throughthe heater.

To enable the invention to be fully under- .stood, I will describe it byreference to the accompanying drawings, in which Figure l is alongitudinal section of a feedwater heater made according to theinvention, and Fig. 2 is a section on the line 2 2, Fig. 1.

a is the cylindrical chamber, which is fitted inside the expansion orenlargement Z) of the steam-pipe (which I term the steam-chamber.) cisthe pipe,of copper or other material that is a good conductor of heat,which is coiled around the chamber a. One end of this pipe is attachedto the inner end of the chamber a,

as shown at (Z, the other end being connected to the outlet 6.

As will be seen, the device, including the chamber a and the coil 0, isfitted to a cover or flange f in such a manner that the said device canbe inserted into the expansion 6 of the steam-pipe and bolted in placeand removed for examination, cleansing, and repair with extreme case.

The exhaust-steam flows through the pipe 5, bathing both the coil 0 andthe chamber a, and the feed-water is caused to flow, preferably throughthe medium of a pump, into the chamber a through the inlet g in theflange f, the said water passing through the said chamber a, where ithas heat imparted to it by the walls of the said chamber. ()n reachingthe end of the chamber it enters the coil 0 and flows in a spiral paththrough the said coil around the chamber a and has more heat imparted toit byits contact with the walls of the hot coil, the heated waterfinally escaping through the outlet 0.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In a feed-water heater, the combination with thesteam-chamber, provided with steam inlet and outlet, of a detachableclosing device fitted over an aperture in the walls of said chamber andprovided with water inlet and outlet, and a water-heating device securedto said closing device and extending into the interior of said chamberand connected to said water inlet and outlet, whereby by removing saidclosing device said heating device may be removed from said chamber forexamination, cleaning and repair, substantially as described.

2. In a feed-water heater, the combination with the steam chamberprovided with a steam-inlet, a steam-outlet, and an auxiliary aperture,a removable closing-plate secured to said chamber and closing saidaperture, a feed-water heating-chamber secured to said plate, extendinginto said steam-chamber and' chamber and coil may be removed therewithhaving an opening eommumeatmg therewith from the steam-chamber,substantially as dethrough said plate, a 'coil connected at one endserlbed.

to the inner end of said chamber and surround- SYDNEY WESTHORIE SIMPSON.ing the same, and having its other endcom- Witnesses:

municating With an aperture in said plate, CHARLES ALEZO JORDAN,

whereby by removing said plate, said Water- EDWARD CHARLES SAUNDERS.

